| COMSY 2082050 · TMA1164888 | Framatome GmbH | 9 Electronics42 Science | Registered | 2023 |
| COMAC 2006325 · TMA1145383 · design | CO.MAC. SRL | 7 Machines37 Construction | Registered | 2022 |
| COMAC 1733466 · TMA965147 · design | Commercial Aircraft Corporation of China, Ltd. | 7 Machines12 Vehicles37 Construction+1 | Registered | 2017 |
| COMMAX 0661529 · TMA418063 · design | Commax Co., Ltd. | 9 Electronics | Registered | 1993 |
| COMAX 0645035 · TMA376294 · design | an individual | 35 Advertising39 Transport40 Treatment+1 | Registered | 1990 |
| COMAX 0633503 · TMA372157 | an individual | 35 Advertising39 Transport40 Treatment+1 | Registered | 1990 |
| 3Commas 2037901 | Owner not shown | 35 Advertising36 Finance42 Science | Pending | 2020 |
| CHUNCHIU 2264469 · TMA1284854 · design | YONGSHENG INTERNATIONAL BRAND MANAGEMENT GROUP CO. LIMITED | 10 Medical | Registered | 2025 |
| CONSCO 2256123 · TMA1279193 | LES ALIMENTS CONSCO FOODS INC. | 29 Meat35 Advertising39 Transport+1 | Registered | 2024 |
| CAANQI 2253364 · TMA1271535 | Anqi Houshold CA Inc. | 11 Lighting18 Leather20 Furniture | Registered | 2024 |
| CANUCKS 2241870 · TMA1241949 · design | Vancouver Canucks Limited Partnership | 9 Electronics14 Jewellery16 Paper+5 | Registered | 2024 |
| CANACK 2233686 · TMA1254140 · design | Canack Technology Ltd | 10 Medical | Registered | 2024 |
| CANACK 2230188 · TMA1252964 · design | Canack Technology Ltd | 10 Medical | Registered | 2024 |
| CAMEOS 2225967 · TMA1252563 | PlayMonster Group LLC | 28 Toys | Registered | 2024 |
| CScience 2222176 · TMA1268472 | 9476-8082 Québec Inc. | 9 Electronics41 Education | Registered | 2024 |
| CANIX 2215654 · TMA1233967 | Entrc, Inc. | 9 Electronics42 Science | Registered | 2024 |
| CONZIE 2210789 · TMA1242970 | Dongguan Conzie Electronics Co., Ltd | 11 Lighting | Registered | 2024 |
| CHUNK 2207713 · TMA1245187 | WestRock Packaging Systems, LLC | 7 Machines | Registered | 2024 |
| CHAMOIS 2207216 · TMA1227392 · design | an individual | 25 Clothing | Registered | 2024 |
| COMAOGO 2206228 · TMA1244058 | Shenzhen Rongchuang Youpin Electronic Commerce Co., Ltd. | 9 Electronics | Registered | 2024 |
| Camyikei 2178398 · TMA1228947 | an individual | 21 Housewares | Registered | 2024 |
| CONSEYA 2171662 · TMA1277383 | an individual | 9 Electronics44 Medical | Registered | 2024 |
| CMX 2169829 · TMA1223767 | Les Pièces d'Auto Transit inc. | 12 Vehicles | Registered | 2024 |
| CHINOOK 2165765 · TMA1235781 | Nokia Corporation | 9 Electronics | Registered | 2024 |
| ConIX 2160128 · TMA1211070 | Conductive Energy Inc. | 1 Chemicals | Registered | 2023 |